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26672672 = 251397661
BaseRepresentation
bin110010110111…
…1111000100000
31212012010000202
41211233320200
523312011142
62351404332
7442466615
oct145577040
955163022
1026672672
1114068634
128b236a8
1356ab660
14378450c
15251d032
hex196fe20

26672672 has 48 divisors (see below), whose sum is σ = 57220632. Its totient is φ = 12165120.

The previous prime is 26672647. The next prime is 26672683. The reversal of 26672672 is 27627662.

It can be written as a sum of positive squares in 4 ways, for example, as 21492496 + 5180176 = 4636^2 + 2276^2 .

It is a super-2 number, since 2×266726722 = 1422862863239168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40022 + ... + 40682.

Almost surely, 226672672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26672672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28610316).

26672672 is an abundant number, since it is smaller than the sum of its proper divisors (30547960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26672672 is a wasteful number, since it uses less digits than its factorization.

26672672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 773 counting only the distinct ones).

The product of its digits is 84672, while the sum is 38.

The square root of 26672672 is about 5164.5592261102. The cubic root of 26672672 is about 298.7827416949.

The spelling of 26672672 in words is "twenty-six million, six hundred seventy-two thousand, six hundred seventy-two".

Divisors: 1 2 4 8 13 16 26 32 52 97 104 194 208 388 416 661 776 1261 1322 1552 2522 2644 3104 5044 5288 8593 10088 10576 17186 20176 21152 34372 40352 64117 68744 128234 137488 256468 274976 512936 833521 1025872 1667042 2051744 3334084 6668168 13336336 26672672